US PATENT SUBCLASS 516 / 143
.~.~.~.~ The agent contains organic compound

Current as of: June, 1999
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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

113  DF  COMPOSITIONS CONTAINING AN AGENT FOR BREAKING (RESOLVING) OR INHIBITING COLLOID SYSTEMS; PROCESSES OF BREAKING (RESOLVING) OR INHIBITING COLLOID SYSTEMS (E.G., GEL BREAKING OR INHIBITING, COAGULATING, FLOCCULATING); PROCESSES OF PREPARING THE COMPOSITIONS {3}
135  DF  .~ Continuous liquid phase colloid system and discontinuous liquid phase (e.g., breaking an emulsion) {4}
139  DF  .~.~ The agent contains material which is different from the primary components of both liquid phases of the emulsion colloid system (i.e., more than only diluting) {2}
141  DF  .~.~.~ Aqueous-petroleum, petroleum-aqueous, aqueous-hydrocarbon, or hydrocarbon-aqueous emulsion systems {2}
143.~.~.~.~ The agent contains organic compound {5}
144  DF  .~.~.~.~.~> The compound contains silicon
145  DF  .~.~.~.~.~> The compound contains phosphorus (e.g., sulfonated lecithin)
146  DF  .~.~.~.~.~> The compound contains sulfoxy* (e.g., sulfonate terpene) {7}
161  DF  .~.~.~.~.~> The compound contains nitrogen, except if present solely as NH4+ (e.g., nitroso phenol) {7}
181  DF  .~.~.~.~.~> The compound contains oxygen (e.g., cresylic acid) {5}

DEFINITION

Classification: 516/143

The agent contains organic compound:

(under subclass 141) Subject matter in which the breaking (resolving) or inhibiting agent* contains an organic* compound.

(1) Note. Materials* used as agents* which are impurely or crudely derived from plant or animal sources, are assumed to contain nitrogen-containing organic* compounds (i.e., the DNA and proteins), unless clearly separated out, such as cellulose, carbohydrate fractions, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

115, for similar subject matter related to breaking (resolving) or inhibiting of foams.

136, for similar subject matter related to breaking (resolving) or inhibiting of emulsions using solid material* which is entirely organic* material* or the nature of it is indeterminable, e.g., solid adsorbent, absorbent, differential adherence surface, filter media, sharp edged particles.

161+, for subject matter wherein the agent comprises materials which are impurely or crudely derived from plant or animal sources that are assumed to contain nitrogen-containing organic* compounds (i.e., the DNA and proteins), unless clearly separated out, such as cellulose, carbohydrate fractions, etc.

SEE OR SEARCH CLASS

166, Wells,

244.1+, for processes of preventing emulsification or of breaking emulsions in a well, which includes significantly claimed process steps of well treating or well operation. See also the Notes and SEARCH CLASS references in Class 166, subclass 244.1.

210, Liquid Purification or Separation,

708, for processes in which an emulsion is treated by a chemical or physical agent to cause the discontinuous phase to coalesce, and cross-reference art collections 922+ for oil spill cleanup (e.g., cross-reference art collection 925 for using chemical agent).